| DocumentStyle | The DocumentStyleinterface provides a mechanism by which the
 style sheets embedded in a document can be retrieved. | 
        
              | LinkStyle | The LinkStyleinterface provides a mechanism by which a style
 sheet can be retrieved from the node responsible for linking it into a
 document. | 
        
              | MediaList | The MediaListinterface provides the abstraction of an
 ordered collection of media, without defining or constraining how this
 collection is implemented. | 
        
              | StyleSheet | The StyleSheetinterface is the abstract base interface for
 any type of style sheet. | 
        
              | StyleSheetList | The StyleSheetListinterface provides the abstraction of an
 ordered collection of style sheets. |